Perhaps you should try some spelling variations:
khia canh » kho canh, thi canh
hanh sinh » hanh dinh, hinh sinh, hanh chinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
bang cong » dang cong, bang song, hang cong
doi khia » doi khi, noi khoa, hoi khoa
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi khia canh - ((hanh sinh) OR (hanh tinh)) cua bang cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khia canh - ((hanh sinh) OR (hanh tinh)) cua bang cong dan ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khia canh - ((hanh sinh) OR (hanh tinh)) cua bang cong dan ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi khia canh - ((hanh sinh) OR (hanh tinh)) cua bang cong dan ((toan tap) or (toan ban))*.